22775481 Reversing Gear Kit | Genuine Volvo Penta Part

🔧 Product Description

A genuine complete Volvo Penta HS68IV-A reversing-gear assembly with a nominal reduction ratio of 1.56:1. The gear provides hydraulic forward, neutral and reverse operation and is supplied as a complete serviced transmission rather than an internal rebuild package. Later service catalogues also list complete HS68IV-A gear 23370817 for the same nominal ratio family.

🚤 Compatibility

• HP Range: Approximately 225-480 HP
• Year Range: Approximately 2000s-2010s

⚙️ Key Features

• Complete genuine HS68IV-A reversing-gear assembly
• Nominal reduction ratio 1.56:1
• Hydraulic ahead and astern clutch operation
• Factory-matched housing, shafts, clutches, pump and valve system
• Final selection must be made by transmission model, ratio and serial number
• Engine type: hydraulic V-drive marine reversing gear

📋 Kit Contents

• Complete assembled reversing gear - Volvo Penta 22775481
• Internal shafts, bearings, clutch packs, oil pump and control valve are factory assembled and are not supplied as separate items within the kit listing
• Engine adapter, flexible coupling, oil cooler, propeller flange and control hardware are separate unless specifically included in the installation package

🔌 Function

The transmission reduces engine speed to the propeller shaft, provides forward and reverse engagement and transfers engine torque through hydraulically operated clutch packs.

⚠️ Common Signs of Failure

• Delayed or harsh forward / reverse engagement
• Gear oil is dark, contaminated or contains metal
• Hydraulic pressure is low or unstable
• Bearing, gear or clutch noise develops

🛠️ Service Notes

• Work clean and dry — the reversing gear circulates its oil through everything in this kit, so grit introduced during assembly ends up in the gears and bearings
• Fit the new seals, gaskets and locking parts supplied with the kit and discard the corresponding old ones, including any that still look serviceable
• Inspect the flexible coupling, shift linkage, control cable and mountings while the gear is accessible; worn ones will undo the benefit of the new parts
• Refill with the oil grade and quantity specified for your reversing gear, then recheck the level after a short run once the new parts have taken up oil
• Confirm the gear engages fully and cleanly in both ahead and astern and returns properly to neutral before the boat is used

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23370817 related later HS68IV-A 1.56:1 complete gear assembly

Other-Brand OEM Numbers

• ZF Marine ZF 68IV ratio-matched manufacturer-family alternative

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging